Vegetable growth of halophytes has significantly increased through moderate salinity. However, little is known about the reproductive traits of euhalophytes. Male reproduction is pivotal for fertilization and seed production and sensitive to abiotic stressors. The pollen viability and pollen longevity of Suaeda salsa treated with 0 and 200 mM of NaCl were evaluated. It was revealed that the pollen size of S. salsa treated with NaCl was significantly bigger than that in controls. Furthermore, the pollen viability of S. salsa plants treated with NaCl was also significantly higher than that of control after 8 h of the pollens were collected (from 10 to 27 h). The pollen viability of NaCl-treated plants in the field could be maintained for 8 h (from 07:00 to 15:00) in sunny days, which was 1 h longer than that of control plants (from 07:00 to 14:00). Meanwhile, the pollen preservation time of NaCl-treated plants was 16 h at room temperature, which was 8 h longer than that of control plants. Genes related to pollen development, such as SsPRK3, SsPRK4, and SsLRX, exhibited high expression in the flowers of NaCl-treated plants. This indicated that NaCl markedly improved the pollen viability and preservation time via the increased expression of pollen development-related genes, and this benefits the population establishment of halophytes such as S. salsa in saline regions.

中文翻译：

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NaCl处理通过上调与花粉发育相关的基因，显着提高了食盐拟南芥的花粉活力和花粉保存时间。

通过适度的盐度，盐生植物的蔬菜生长显着增加。然而，关于真盐细胞的生殖特性知之甚少。雄性繁殖对于施肥和种子生产至关重要，并对非生物胁迫源敏感。评估了0和200 mM NaCl处理的Salaeda salsa的花粉生存力和花粉寿命。结果表明，用氯化钠处理的莎莎沙门氏菌的花粉大小明显大于对照。此外，在收集8小时的花粉后（10至27小时），用NaCl处理的莎草植物的花粉生存力也显着高于对照。在晴天，NaCl处理过的植物的花粉生存能力可以维持8 h（从07:00到15:00），比对照植物（从07:00到14:00）的花粉生存力长1 h。 ）。同时，NaCl处理的植物在室温下的花粉保存时间为16 h，比对照植物长8 h。与花粉发育相关的基因，例如SsPRK3，SsPRK4和SsLRX，在用NaCl处理过的植物的花朵中表现出高表达。这表明NaCl通过增加与花粉发育相关的基因的表达而显着改善了花粉的生存能力和保存时间，这有利于盐生地区盐生植物如S. salsa的种群建立。